Sushi+Tatami Room, Manhattan? Brooklyn?

Does anyone know of a tasty sushi restaurant in Manhattan, or Brooklyn, that has a private tatami room that could hold 8-people AND isn't a million bucks? Sadly, the room at Naka Naka only holds 6... and no amount of tears and begging could get them to budge. Sakura Hana doesn't take reservations for their room and Morimoto doesn't offer one. Typhoon Lounge has a room but I don't know anyone who has gone. Thanks so much!

Thanks for the tip! Sadly, their tatami room can only hold 6! What is it with that number? I either can get a max of 6 when I call around OR a minimum of 15 people and with a charge of $10 a head on top of the tab.